Journal of the Optical Society of America B

Room-temperature generation of amplitude-squeezed light from 1550-nm distributed-feedback semiconductor lasers

Francine Jérémie, C. Chabran, Philippe B. Gallion

Published Mar 1, 1999• 11 citations

Abstract

Experimental results are reported for amplitude-squeezed states generated from two kinds of 1550-nm distributed-feedback semiconductor laser at room temperature. Both lasers exhibit excess noise under free-running conditions, but the origin of this noise is different for the two lasers. For one of the lasers the excess noise is reduced by enhancement of the side-mode–suppression ratio. For the other the excess noise that degrades the squeezing is reduced by weak dispersive optical feedback produced by a grating detuned from the maximum of its first-order reflection. Thus the grating is used to convert phase noise into intensity noise.

DOI: 10.1364/josab.16.000460

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